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Journal articles
Open Access
Comparative papermaking properties of oil-palm empty fruit bunch, TAPPI JOURNAL, January 2001, Vol. 84(1)

Comparative papermaking properties of oil-palm empty fruit bunch, TAPPI JOURNAL, January 2001, Vol. 84(1)

Journal articles
Open Access
Recycling old telephone directories, TAPPI JOURNAL, January 2001, Vol. 84(1)

Recycling old telephone directories, TAPPI JOURNAL, January 2001, Vol. 84(1)

Journal articles
Magazine articles
Open Access
Ultrastructural Behavior of Cell Wall Polysaxxharides, TAPPI Journal April 2022

ABSTRACT: Considerable information on the ultrastructural organization of the plant cell wall and the supermolecular arragement of the cell wall components, in particular of cellulose, has been obtained with the electron microscope.

Journal articles
Open Access
PET Recyclable Polymer for Making Paper Washbowls, TAPPI JOURNAL May 2008

PET Recyclable Polymer for Making Paper Washbowls, TAPPI JOURNAL May 2008

Journal articles
Open Access
Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)

Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)

Journal articles
Open Access
Variation of white water composition in a tmp and dip newsprint paper machine, TAPPI JOURNAL, August 1997, Vol. 80(8)

Variation of white water composition in a tmp and dip newsprint paper machine, TAPPI JOURNAL, August 1997, Vol. 80(8)

Journal articles
Open Access
Economic stability bodes well for Brazilian pulp and paper producers, TAPPI JOURNAL, November 1997, Vol. 80(11)

Economic stability bodes well for brazilian pulp and paper producers, TAPPI JOURNAL, November 1997, Vol. 80(11)

Journal articles
Open Access
Key aspects of capital effectiveness, TAPPI JOURNAL, October 1997, Vol. 80(10)

Key aspects of capital effectiveness, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
The evolution of maintenance management and engineering in the pulp and paper industry over the past fifty years, TAPPI JOURNAL, February 1996, Vol. 79(2)

The evolution of maintenance management and engineering in the pulp and paper industry over the past fifty years, TAPPI JOURNAL, February 1996, Vol. 79(2)

Journal articles
Magazine articles
Open Access
Dynamic out-of-plane compression of paperboard — Influence of impact velocity on the surface, TAPPI Journal February 2024

ABSTRACT: Processes that convert paperboard into finished products include, for example, printing, where the paperboard is subjected to rapid Z-directional (ZD) compression in the print nip. However, measuring and evaluating the relevant properties in the thickness direction of paperboard are not necessarily straightforward or easy. Measuring at relevant, millisecond deformation rates further complicates the problem. The aim of the present work is to elucidate some of the influences on the compressive stiffness. Both the initial material response and the overall compressibility of the paperboard is studied. In this project, the effect on the material response from the surface structure and the millisecond timescale recovery is explored.The method utilized is a machine called the Rapid ZD-tester. The device drops a probe in freefall on the substrate and records the probe position, thus acquiring the deformation of the substrate. The probe is also allowed to bounce several times on the surface for consecutive impacts before being lifted for the next drop. To investigate the time dependent stiffness behavior, the probe is dropped several times at the same XY position on the paperboard from different heights, thus achieving different impact velocities. The material response from drops and bounces combined allows study of the short-term recovery of the material. The material in the study is commercial paperboard. The paperboard samples are compared to material where the surface has been smoothed by grinding it. Our study shows that there is a non-permanent reduction in thickness and a stiffening per bounce of the probe, indicating a compaction that has not recovered in the millisecond timescale. Additionally, a higher impact velocity has an initial stiffening effect on the paperboard, and this is reduced by smoothing the surface.

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